Automobile bumper alloy material

Abstract

The invention discloses an automobile bumper alloy material which comprises, by weight, 20-25 parts of polypropylene, 1-6 parts of nucleating agents, 2-3 parts of antioxidants, 11-19 parts of oxidizedpolyethylene, 12-31 parts of atactic polypropylene, 1-9 parts of concentrated hydrochloric acid, 1-7 parts of curing agent methyl triethoxy silane, 1-7 parts of maleic anhydride, 2-8 parts of copperpowder, 3-9 parts of iron oxide, 1-8 parts of antioxidants, 1-7 parts of anti-aging agent MB, 1-7 parts of glycerol triglyceride and 10-14 parts of zinc oxide. According to the automobile bumper alloymaterial, the strength and the toughness of automobile bumpers are remarkably improved, the prepared modified polyethylene material is widely applicable to the automobile bumpers, and the automobilebumpers are excellent in performance.

Description

technical field [0001] The invention relates to an automobile bumper alloy material. Background technique [0002] Automobile bumper is a thin-walled large-scale structural part with large surface area and complex shape. It not only requires excellent high and low temperature impact toughness, rigidity, aging resistance, heat resistance, cold resistance, but also oil and lubricating oil resistance. , paint and other properties. The most important of which is to have high impact toughness and good processing flow properties. Polypropylene (PP), with its advantages of low density, easy molding and processing, and recyclability, is increasingly used in automobiles, especially in the preparation of automobile bumpers. It is the largest and fastest-growing plastic in automobiles. types of plastic. However, PP has poor low-temperature brittleness, large molding shrinkage, and poor impact resistance. Therefore, it needs to be modified when it is used in automobile bumpers. Con...

AI Technical Summary

Problems solved by technology

However, PP has poor low-temperature brittleness, large molding shrinkage, and poor impact resistance. Therefore, it needs to be modified when it is used in automobile bumpers.